Replacing Diesel Exhaust Fluid Vent Hose Filter - MacDon M2170NT Operator's Manual

4. Turn plug handle (A) counterclockwise until loose and then
remove the plug by pulling it straight out.
NOTE:
When filling oil at a fast rate, the screen element in the fill
tube restricts the oil and makes it difficult for air to escape.
5. To improve oil fill rate through the screen, open breather
cap (A) at the top of the tank to allow air to escape.
IMPORTANT:
Whenever the breather cap is opened, clean the area and
take care to prevent debris from entering the tank through
the opening.
6. Add oil to maintain the level between the low and full
indicator marks. For oil specifications and quantity, refer to
6.1.2 Lubricants, Fluids, and System Capacities, page
NOTE:
When the sight glass is showing LOW, approximately 4 liters
(1 U.S. gallon) is required to reach FULL.
7. Reinstall the plug, and turn plug handle (B) clockwise until
the plug is secure.
8. Close breather cap (A).
9. Close the hood. For instructions, refer to
Hood, page 288.

6.13.4 Replacing Diesel Exhaust Fluid Vent Hose Filter

The diesel exhaust fluid (DEF) vent hose filter should be replaced every 2000 hours.
DANGER
To prevent bodily injury or death from the unexpected startup of the machine, always stop the engine and remove the
key from the ignition before leaving the operator's seat for any reason.
1. Shut down the engine, and remove the key from the ignition.
262171
MAINTENANCE AND SERVICING
Figure 6.138: Plug Handle
279.
Figure 6.139: Hydraulic Oil Tank
6.3.2 Closing
371
A
A
B
Revision A